Konami Wiki Guide

Konami Code

The Konami Code is a famous (and legendary) cheat code that appears in many of Konami's games. The code first appeared in 1986's Gradius for the Nintendo Entertainment System, but was popularized more with the release of Contra for the Nintendo Entertainment System.

The Konami Code found its way in most of Konami's games, but other non-Konami titles started to adapt and use the code as an easter egg.